* {
  border: 0;
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --hue: 223;
  --sat: 10%;
  --bg: hsl(var(--hue),var(--sat),90%);
  --fg: hsl(var(--hue),var(--sat),10%);
  --hue-success: 126;
  --success1: hsl(var(--hue-success),90%,40%);
  --success2: hsl(var(--hue-success),90%,24%);
  --periwinkle: hsl(240,90%,70%);
  --light-blue: hsl(210,90%,70%);
  --orange: hsl(15,90%,70%);
  --magenta: hsl(300,90%,70%);
  --light-green: hsl(105,40%,70%);
  --light-teal: hsl(150,40%,70%);
  --purple: hsl(270,90%,70%);
  --trans-dur: 0.3s;
  font-size: clamp(1rem,0.95rem + 0.25vw,1.25rem);
}

body {
  background-color: var(--bg);
  color: var(--fg);
  display: flex;
  font: 1em/1.5 sans-serif;
  height: 100vh;
  transition: background-color var(--trans-dur), color var(--trans-dur);
}

.spinner {
  color: var(--success2);
  overflow: visible;
  margin: auto;
  width: 8em;
  height: auto;
  transition: color var(--trans-dur);
}
.spinner circle,
.spinner g,
.spinner path {
  animation-duration: 4s;
  animation-timing-function: linear;
  animation-fill-mode: forwards;
}
.spinner__check, .spinner__pop-start, .spinner__worm {
  transform-origin: 24px 24px;
}
.spinner__check {
  animation-name: check;
}
.spinner__pop-dot {
  animation-name: pop-dot;
}
.spinner__pop-dot-group {
  animation-name: pop-dot-group1;
}
.spinner__pop-dot-group + .spinner__pop-dot-group {
  animation-name: pop-dot-group2;
}
.spinner__pop-end {
  animation-name: pop-end;
}
.spinner__pop-start {
  animation-name: pop-start;
}
.spinner__worm {
  animation-name: worm;
}

/* Dark theme */
@media (prefers-color-scheme: dark) {
  :root {
    --bg: hsl(var(--hue),90%,10%);
    --fg: hsl(var(--hue),90%,90%);
  }

  .spinner {
    color: var(--success1);
  }
}
/* Animations */
@keyframes check {
  from, 64% {
    stroke-dashoffset: -36.7;
    transform: scale(1);
  }
  75%, 77% {
    animation-timing-function: cubic-bezier(0.65, 0, 0.35, 1);
    stroke-dashoffset: 13.7;
    transform: scale(1);
  }
  79% {
    animation-timing-function: cubic-bezier(0.65, 0, 0.35, 1);
    stroke-dashoffset: 13.7;
    transform: scale(0.4);
  }
  87% {
    animation-timing-function: cubic-bezier(0.32, 0, 0.67, 0);
    stroke-dashoffset: 13.7;
    transform: scale(1.4);
  }
  93%, to {
    stroke-dashoffset: 13.7;
    transform: scale(1);
  }
}
@keyframes pop-dot {
  from, 80% {
    animation-timing-function: cubic-bezier(0.33, 1, 0.68, 1);
    transform: translate(0, 6px);
  }
  90%, to {
    transform: translate(0, 0);
  }
}
@keyframes pop-dot-group1 {
  from, 82.5%, 90%, to {
    opacity: 0;
  }
  85%, 87.5% {
    opacity: 1;
  }
}
@keyframes pop-dot-group2 {
  from, 82.5%, to {
    opacity: 0;
  }
  85%, 90% {
    opacity: 1;
  }
}
@keyframes pop-end {
  from {
    animation-timing-function: steps(1, end);
    opacity: 0;
    r: 18px;
    stroke-width: 4px;
  }
  82.5% {
    animation-timing-function: linear;
    opacity: 1;
    r: 18px;
    stroke-width: 4px;
  }
  84%, to {
    opacity: 0;
    r: 19px;
    stroke-width: 3px;
  }
}
@keyframes pop-start {
  from {
    animation-timing-function: steps(1, end);
    opacity: 0;
    transform: scale(0.35);
  }
  76% {
    animation-timing-function: cubic-bezier(0.65, 0, 0.35, 1);
    opacity: 1;
    transform: scale(0.35);
  }
  82.5% {
    animation-timing-function: steps(1, start);
    opacity: 1;
    transform: scale(1);
  }
  to {
    opacity: 0;
    transform: scale(1);
  }
}
@keyframes worm {
  from {
    stroke-dashoffset: -51.84;
    transform: rotate(-119deg);
  }
  60% {
    stroke-dashoffset: -51.84;
    transform: rotate(961deg);
  }
  64% {
    animation-timing-function: cubic-bezier(0.61, 1, 0.88, 1);
    stroke-dashoffset: -51.84;
    transform: rotate(1033deg);
  }
  72.5%, to {
    stroke-dashoffset: -138.23;
    transform: rotate(1033deg);
  }
}